... three-dimensional world However, the image that they define—what we find onthe projection plane—is two-dimensional The process by which the specification ofthe object is combined withthe specification ofthe ... strike the phosphor coating onthe tube, light is emitted The direction ofthe beam is controlled by two pairs of deflection plates The output ofthe computer is converted, by digitalto-analog converters, ... synopsis ofthe OpenGL functions used in the book Changes from the Fifth Edition The reaction of readers to the first five editions of this book was overwhelmingly positive, especially to the use of...
... data The questionnaire of this study was designed by the investigator to collect the data It contained questions All these questions were designed based onthe theory of reading lesson with top- down ... stages of a reading lesson 20 Finally, top- downapproach is discussed which includes an overview about top- down approach, the differences between top- down and bottom-up approach and the theory of top- down ... skill, consisting of principles of teaching reading, common methods of teaching reading and stages of a reading lesson The next part presents a review of definition of top- down approach, the differences...
... transfer flow control congestion control Ì learn about transport layer protocols in the Internet: r r r UDP: connectionless transport TCP: connection-oriented transport TCP congestion control Transport ... Principles of congestion control Ì 3.7 TCP congestion control Transport Layer 3- Principles of Reliable data transfer Ì important in app., transport, link layers Ì top- 10 list of important networking topics! ... Principles of congestion control Ì 3.7 TCP congestion control Transport Layer 3-7 Multiplexing/demultiplexing Multiplexing at send host: gathering data from multiple sockets, enveloping data with header...
... how the media player buffers audio/video 7: Multimedia Networking 7- RTSP: out of band control FTP uses an “out-ofband” control channel: Ì A file is transferred over one TCP connection Ì Control ... Internet phone applications run RTP, then they may be able to work together r r r payload type identification packet sequence numbering timestamping 7: Multimedia Networking 7- RTP runs ontopof UDP ... average deviation ofthe delay, vi : vi = (1 − u )vi −1 + u | ri − ti − d i | The estimates di and vi are calculated for every received packet, although they are only used at the beginning of a talk...
... integration and coordination ofthe hardware, software, and human elements to monitor, test, poll, configure, analyze, evaluate, and control the network and element resources to meet the real-time, ... ORGANZATION “IETF SNPv2 Working Group” CONTACT-INFO “ Keith McCloghrie ……” DESCRIPTION The MIB module for managing IP and ICMP implementations, but excluding their management of IP routes. ” REVISION ... or 1000s of interacting hardware/software components Ì other complex systems requiring monitoring, control: r jet airplane r nuclear power plant r others? "Network management includes the deployment,...
... in the previous section, this is a bona fide connection for which the switches onthe path between the sender and receiver maintain connection state for that connection In the jargon of telephony, ... column is the n value described above, i.e., the number ofthe router along the route; the second column is the name ofthe router; the third column is the address ofthe router (of the form xxx.xxx.xxx.xxx); ... are (the role of message exchange and the actions taken on events) in the context of network applications (e.g., the Web, FTP and e-mail) which they use daily Furthermore, the inclusion of a...
... construction In this section we describe the topology ofthe Internet in the United States as of 1999 Let's begin at thetopofthe hierarchy and work our way down Residing at the very topof ... intuition to answer the question.) 7) Discussion question: What are some ofthe current activities oftheThe World Wide Web Consortium (W3C)? What are some ofthe current activities ofthe National ... earns money by charging a monthly fee to the regional ISPs that connect to it The fee that an NBP charges to a regional ISP typically depends onthe bandwidth ofthe connection between the regional...
... four "number of" fields These fields indicate the number of occurrences ofthe four types of "data" sections that follow the header The question section contains information about the query that ... group of people get in a taxi, the group has to inform the driver ofthe destination address As with TCP, the destination address is a tuple consisting ofthe IP address ofthe destination host ... application developer has control of everything onthe application-layer side ofthe socket; however, it has little control ofthe transport-layer side (At the very most, the application developer...
... etc.) The TCP congestion control mechanism has each side ofthe connection keep track of two additional variables: the congestion window and the threshold The congestion window, denoted CongWin, ... networking We conclude this section with a discussion of congestion control in the ATM ABR protocol The following section contains a detailed study of TCP's congestion control algorithm 3.6.1 The Causes ... treat the cause of network congestion, mechanisms are needed to throttle the sender in the face of network congestion In this section, we consider the problem of congestion control in a general context,...
... and destination, Traceroute in the source sends a series of ordinary IP datagrams to the destination The first of these datagrams has a TTL of 1, the second of 2, the third of 3, etc The source ... the backbone area The primary role ofthe backbone area is to route traffic between the other areas in the AS The backbone always contains all area border routers in the AS and may contain non ... indicate hops to the destination and would specify the IP address ofthe second router along the path The first router would then forward the datagram to the second router, using the link layer...
... transmits the packet on all of its outgoing links (except the one on which it was received) only if the packet arrived onthe link that is on its own shortest path back to the sender Otherwise the ... to each ofthe destinations (that is, there is no other tree that has a shorter distance path from the source to any ofthe destinations), while the Steiner tree minimizes the sum ofthe link ... resulting routing tree, compute the rate of traffic on each link in the topology (Compute the total amount of traffic on each link, regardless ofthe direction ofthe traffic flow) Suppose next...
... arrived, the switch can start to transmit the front ofthe packet while the back ofthe packet continues to arrive Of course, before transmitting the packet onthe outbound link, the portion ofthe ... point-to-point connection to the hub This connection consists of two pairs of twisted-pair cooper wire, one for transmitting and the other for receiving At each end ofthe connection there is a connector that ... the frame passes through a "tee connector;" two copies ofthe frame leave the tee connector, one copy going in one direction and one copy in the other direction As the frames travel towards the...
... represented by byte Each ofthe samples is converted to its bit representation The bit representations of all the samples are concatenated together to form the digital representation ofthe signal As an ... spurt If there is no packet loss, then the receiver can determine whether packet i is the first packet ofthe talk spurt by comparing the timestamp ofthe ith packet withthe timestamp ofthe (i-1)st ... information to the original packet stream For the cost of marginally increasing the transmission rate ofthe audio ofthe stream, the redundant information can be used to reconstruct "approximations"...